
.main {
	width: 900px;
	margin: 0 auto;
	overflow: hidden;
	background: #efefef;
	height: 2000px;
}
.slidershow{
    width: 800px;
    height: 500px;
    overflow: hidden;
}
.middle{
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%,-50%);
}
.navigation{
    position:absolute;
    bottom: 20px;
    
    left: 50%;
    transform: translateX(-50%);
    display: flex;
}
.bar{
    width: 50px;
    height: 20px;
    border: 2px solid #fff;
    margin: 6px;
    cursor: pointer;
    border-radius: 10px;
    transition: 0.4s;
}
.bar:hover{
    background: #fff;
}
input[name="r"]{
    position: absolute;
    visibility: hidden;
}
.slides{
    width: 500%;
    height: 100%;
    display: flex;
}
.slide{
    width: 20%;
    transition: 0.6s;
}
.slide img{
    width: 100%;
    height: 100%;
}
#r1:checked ~ .s1{
    margin-left: 0;
}
#r2:checked ~ .s1{
    margin-left: -20%;
}
#r3:checked ~ .s1{
    margin-left: -40%;
}
#r4:checked ~ .s1{
    margin-left: -60%;
}
#r5:checked ~ .s1{
    margin-left: -80%;
}
#bay{
    border: 1px solid black;
    margin-top: 550px; 
    width: 220px;
    margin-left: 10%;
    position: absolute;
    text-align: right;
    border-radius: 10px;
}
.shu{
    border: 1px solid black;
    margin-top:550px; 
    width: 250px;
    margin-left: 30%;
    position: absolute;
    border-radius: 10px;
}